/*
 * Copyright (C) 2011 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.rickdynasty.tws.core.apidemos.actionbar;

import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;

import android.app.TwsActivity;
import android.content.Context;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.ShareActionProvider;

import com.rickdynasty.tws.burgeon.R;

/**
 * This activity demonstrates how to use an {@link android.view.ActionProvider}
 * for adding functionality to the Action Bar. In particular this demo is adding
 * a menu item with ShareActionProvider as its action provider. The
 * ShareActionProvider is responsible for managing the UI for sharing actions.
 */
public class ActionBarSpinner extends TwsActivity {

	private static final String SHARED_FILE_NAME = "shared.png";

	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		copyPrivateRawResuorceToPubliclyAccessibleFile();
	}

	@Override
	public boolean onCreateOptionsMenu(Menu menu) {
		// Inflate your menu.
		getMenuInflater().inflate(R.menu.action_bar_share_action_provider, menu);

		// Set file with share history to the provider and set the share intent.
		MenuItem actionItem = menu.findItem(R.id.menu_item_share_action_provider_action_bar);
		ShareActionProvider actionProvider = (ShareActionProvider) actionItem.getActionProvider();
		actionProvider.setShareHistoryFileName(ShareActionProvider.DEFAULT_SHARE_HISTORY_FILE_NAME);
		// Note that you can set/change the intent any time,
		// say when the user has selected an image.
		actionProvider.setShareIntent(createShareIntent());

		return true;
	}

	/**
	 * Creates a sharing {@link Intent}.
	 * 
	 * @return The sharing intent.
	 */
	private Intent createShareIntent() {
		Intent shareIntent = new Intent(Intent.ACTION_SEND);
		shareIntent.setType("image/*");
		Uri uri = Uri.fromFile(getFileStreamPath("shared.png"));
		shareIntent.putExtra(Intent.EXTRA_STREAM, uri);
		return shareIntent;
	}

	/**
	 * Copies a private raw resource content to a publicly readable file such
	 * that the latter can be shared with other applications.
	 */
	private void copyPrivateRawResuorceToPubliclyAccessibleFile() {
		InputStream inputStream = null;
		FileOutputStream outputStream = null;
		try {
			inputStream = getResources().openRawResource(R.raw.robot);
			outputStream = openFileOutput(SHARED_FILE_NAME, Context.MODE_WORLD_READABLE | Context.MODE_APPEND);
			byte[] buffer = new byte[1024];
			int length = 0;
			try {
				while ((length = inputStream.read(buffer)) > 0) {
					outputStream.write(buffer, 0, length);
				}
			} catch (IOException ioe) {
				/* ignore */
			}
		} catch (FileNotFoundException fnfe) {
			/* ignore */
		} finally {
			try {
				inputStream.close();
			} catch (IOException ioe) {
				/* ignore */
			}
			try {
				outputStream.close();
			} catch (IOException ioe) {
				/* ignore */
			}
		}
	}
}
